"World News Tonight With David Muir" Podcast - January 29, 2015

Train Nightmare: A terrifying moment for commuters on a train. 

Air Scares: More air scares with two emergency landings that had nothing to do with weather. 

Measles: A growing concern over measles with no more than eighty cases in fourteen states. 

Former Patriot: He would have been getting ready for the Super Bowl as part of the Patriots, but former NFL star Aaron Hernandez is in court facing murder charges.

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